Finding the Fourth Proportional to 80,895.31, 121,200.58 and 72,088.99
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Solution
The fourth proportional to 80,895.31, 121,200.58 and 72,088.99 is: 108,006.60
Step by Step Solution
- Step 1: Write the proportion equation
80,895.31 : 121,200.58 = 72,088.99 : x - Step 2: Convert to fraction form
80,895.31/121,200.58 = 72,088.99/x - Step 3: Cross multiply
80,895.31x = 121,200.58 × 72,088.99 - Step 4: Simplify right side
80,895.31x = 8,737,226,983.97 - Step 5: Solve for x
x = 8,737,226,983.97/80,895.31 - Step 6: Final answer
x = 108,006.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.